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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">bzhb</journal-id><journal-title-group><journal-title xml:lang="ru">Бетон и железобетон</journal-title><trans-title-group xml:lang="en"><trans-title>Concrete and Reinforced Concrete</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0005-9889</issn><issn pub-type="epub">3034-1302</issn><publisher><publisher-name>АО «НИЦ «Строительство»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37538/0005-9889-2023-1(615)-33-42</article-id><article-id custom-type="elpub" pub-id-type="custom">bzhb-38</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СТРОИТЕЛЬНЫЕ МАТЕРИАЛЫ И ИЗДЕЛИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BUILDING MATERIALS AND PRODUCTS</subject></subj-group></article-categories><title-group><article-title>Разработка методики контроля и прогноза прочности бетона в раннем возрасте методом акустической эмиссии</article-title><trans-title-group xml:lang="en"><trans-title>Development of methods for monitoring and predicting the strength of concrete at an early age by acoustic emission method</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сагайдак</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sagaidak</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Иванович Сагайдак, канд. техн. наук, ведущий научный сотрудник центра № 20 НИИЖБ им. А.А. Гвоздева АО «НИЦ «Строительство», Москва</p><p>e-mail: sagaidak-niizhb@mail.ru</p></bio><bio xml:lang="en"><p>Alexandr I. Sagaidak, Cand. Sci. (Engineering), Leading Researcher of the Center No. 20, NIIZHB named after A.A. Gvozdev, JSC Research Center of Construction, Moscow</p><p>e-mail: sagaidak-niizhb@mail.ru</p></bio><email xlink:type="simple">sagaidak-niizhb@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бардаков</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bardakov</surname><given-names>V. V.,</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Васильевич Бардаков, канд. техн. наук, заместитель начальника научно-исследовательского отдела, ООО «ИНТЕРЮНИС-ИТ», Москва</p><p>e-mail: bardakovvv@interunis-it.ru</p></bio><bio xml:lang="en"><p>Vladimir V. Bardakov, Cand. Sci. (Engineering), Deputy Head of the Research Department, LLC «INTERUNISIT», Moscow</p><p>e-mail: bardakovvv@interunis-it.ru</p></bio><email xlink:type="simple">bardakovvv@interunis-it.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боровкова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Borovkova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгения Сергеевна Боровкова, физик, старший преподаватель Полоцкого государственного университета имени Евфросинии Полоцкой, Новополоцк</p><p>e-mail: e.borovkova@psu.by</p></bio><bio xml:lang="en"><p>Evgeniya S. Borovkova, Physicist, Senior Lecturer at the Euphrosyne Polotsk State University, Novopolotsk</p><p>e-mail: e.borovkova@psu.by</p></bio><email xlink:type="simple">e.borovkova@psu.by</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский, проектно-конструкторский и технологический институт бетона и железобетона (НИИЖБ) им. А.А. Гвоздева АО «НИЦ «Строительство»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research institute of concrete and reinforced concrete (NIIZHB) named after A.A. Gvozdev, JSC Research Center of Construction</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «ИНТЕРЮНИС-ИТ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC “INTERUNIS-IT”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Полоцкий государственный университет имени Евфросинии Полоцкой</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Euphrosyne Polotskaya state university of Polotsk</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>11</day><month>09</month><year>2023</year></pub-date><volume>615</volume><issue>1</issue><fpage>33</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сагайдак А.И., Бардаков В.В., Боровкова Е.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Сагайдак А.И., Бардаков В.В., Боровкова Е.С.</copyright-holder><copyright-holder xml:lang="en">Sagaidak A.I., Bardakov V.V., Borovkova E.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.bzhb.ru/jour/article/view/38">https://www.bzhb.ru/jour/article/view/38</self-uri><abstract><sec><title>Введение</title><p>Введение. Приведено описание основных результатов выполненной в АО «НИЦ «Строительство» научно-исследовательской работы по теме: «Разработка методики контроля и прогноза прочности бетона в раннем возрасте методом акустической эмиссии».</p><p>Целью выполнения работы являлось получение экспериментальных данных для разработки методики контроля и прогноза прочности бетона в раннем возрасте методом акустической эмиссии.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследования проводились на бетонных смесях, изготовленных из тяжелого и мелкозернистого бетонов с минеральными и химическими добавками. Процесс твердения бетонов сопровождался регистрацией данных акустической эмиссии. Акустико-эмиссионный мониторинг проводился непрерывно в течение нескольких суток после бетонирования составов.</p></sec><sec><title>Результаты</title><p>Результаты. По результатам проведенного исследования выявлены наиболее информативные параметры акустико-эмиссионных данных, которые коррелируют с прочностью бетона, разработаны автоматизированные алгоритмы контроля его прочности. На основании результатов измерения скорости распространения акустических волн и уменьшения коэффициента затухания акустических сигналов, а также выходу этих значений на плато, определены периоды завершения схватывания бетонных смесей. В ходе экспериментов определены оптимальные частотные характеристики преобразователей акустической эмиссии.</p></sec><sec><title>Выводы</title><p>Выводы. Результаты исследований позволяют внедрить в практику строительства новый подход контроля прочностных свойств бетонов в раннем возрасте с использованием метода акустической эмиссии. Предложенный подход позволяет проводить контроль дистанционно, без присутствия оператора. К преимуществам предложенного подхода также относится его использование в труднодоступных местах, где применение других методов контроля затруднительно.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The description of the main results of the research work carried out in JSC Research Center of Construction on the topic “Development of methods for monitoring and predicting the strength of concrete at an early age by acoustic emission method” is given.</p></sec><sec><title>Aim</title><p>Aim. The aim of the work is to obtain experimental data for the development of methods for monitoring and predicting the strength of concrete at an early age by acoustic emission.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The research was carried out on concrete mixtures made of heavy and fine-grained concrete with mineral and chemical additives. In the process of concrete hardening the acoustic emission method was used. Acoustic emission monitoring was carried out continuously for several days.</p></sec><sec><title>Results</title><p>Results. According to the results of the study, the most informative parameters of acoustic emission data that correlate with the strength of concrete have been identified. Automated algorithms for concrete strength monitoring have been developed. Based on the results of measuring the propagation velocity of acoustic waves and the decrease in the attenuation coefficient of acoustic signals, as well as the output of these values to the plateau, the periods of completion of setting of concrete mixtures are determined. During the experiments optimal frequency characteristics of acoustic emission sensors were determined.</p></sec><sec><title>Conclusions</title><p>Conclusions. The results of the research allow us to introduce into the practice of construction a new approach for monitoring the strength properties of concrete during its hardening using the acoustic emission method. Proposed approach can be carried out remotely, without the presence of an operator. The advantages of this approach also include its use in hard-to-reach places where the use of other testing methods is difficult.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>бетонная смесь</kwd><kwd>твердение бетона</kwd><kwd>акустическая эмиссия</kwd><kwd>контроль и прогноз прочности бетонной смеси</kwd><kwd>акустико-эмиссионный мониторинг</kwd></kwd-group><kwd-group xml:lang="en"><kwd>concrete mix</kwd><kwd>concrete hardening</kwd><kwd>acoustic emission</kwd><kwd>testing and prediction</kwd><kwd>acoustic emission monitoring</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет средств госбюджета.</funding-statement><funding-statement xml:lang="en">The work was carried out at the expense of the state budget.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Сагайдак А.И., Бардаков В.В. 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